.node {
  stroke: #fff;
  stroke-width: 1.5px;
  cursor: pointer;
  fill-opacity: .5;
}

.link {
  stroke: #999;
  stroke-opacity: .6;
}

text {
  pointer-events: none;
  font: 11px sans-serif;
  stroke: black;
  stroke-opacity: 1;
  stroke-width: .5px;
}

